$130 billion short. >> we assume the debt-related bills have to be paid, there's no question, you've got to make the mortgage payment. everything else, you have 50 cents to pay $1 worth of bills. >> reporter: jerome powell, former undersecretary of the treasury for finance under formerresident george w. bush, has been explaining to members of congress what this scenario might mean. >> if you decide, for example, to make all the safety net payments, we're going to stand up for the elderly, the sick, the poor, the disabled. we're going to make all those payments. what's left unpaid is the entire defense department. not a dollar. active duty military pay, not a dollar. >> reporter: executives of the 20 largest banksks will have an opportunity to ask about doomsday when they meet with treasury depav q't officials later in the day on friday at the federal reserve bank in new york. jake tapper, abc news, the white house. >> the scary part of all this is you listen to the reporters, to the politicians, all the analysts, and no one knows how this is going to end. and we're, what, three days out.